Which of the following does not describe a scientific application of the fossil record? Scientists...

use a fossil to determine the mating habits of an organism

Which process MOST LIKELY led to the change in the allele frequency for population B?

Natural Selection acting on a harmful trail

Big drop in birds with small beaks ... Big increase in large-beaked birds. How can you explain this?

Available food changed and the small beaked birds could not readily adapt.

Which of these best describes extinction events?

occur at higher rates during eco stress when populations are poorly adapted

The fact that both animals have males with storage pouches that carry the developing offspring indicates what?

The two animals likely have a common ancestor

The foundation for biological evolution or descent through modification is

changes in gene frequency in a pop occur from one generation to the next.

Human activities can alter an ecosystem and create extinction of species. These activities include the following except

assuring a habitat remains unharmed.

The diagram shows the embryo development of four vertebrates and suggests all of the following EXCEPT

there are no similarities in the embryos of all four groups.

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F1S Bio 1 Evolution Review Unit 5

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Questions 15

Answers

1
Climate, habitat type, available food, geographic barriers are all ______factors that can impact selected traits.
biotic
human
environmental
geographic
2
Which of the following does not describe a scientific application of the fossil record? Scientists...
use a fossil to determine the mating habits of an organism
use a layer in the fossil record to hypothesize about an organism's habitat
discover a new fossil and can compare its features to other organisms.
use the fossil record as evidence of slow changing features over long time
3
Which process MOST LIKELY led to the change in the allele frequency for population B?
Natural selection acting on a beneficial trait
Natural Selection acting on a harmful trail
Natural selection acting on a recessive trait
Natural selection acting on a dominant trait
4
Dodo birds could not run fast or fly. Sailors hunted them for food. The dodo bird became extinct because of
inability to lay enough eggs.
human activities.
changes in climate.
scarcity of food.
5
Big drop in birds with small beaks ... Big increase in large-beaked birds. How can you explain this?
Competition for food favored large beaks; the small beaked birds died off.
The larger beaked birds preyed on the smaller beaked birds.
Available food changed and the small beaked birds could not readily adapt.
The small-beaked birds migrated to another location.
6
Which of these best describes extinction events?
occur at higher rates during eco stress when populations are poorly adapted
are avoidable if species are monitored and placed on an endangered list.
are entirely caused by human interactions and disruptions to ecosystems.
occur when speciation ceases to occur and environments become too cold for.
7
Which of the following methods is most accurate when determining how closely related organisms are?
Analogous structure comparison
DNA comparison
Homologous structure comparison
Comparative embryology
8
This is a population of disease-causing bacteria. What is the MOST LIKELY cause for variation in this population?
genetic mutation
sexual reproduction
over-population
drug resistance
9
A small portion of a population that is geographically isolated from the rest of the population runs the risk of ...
decreased mutation rate
decreased natural selection
decreased genetic drift
decreased genetic variation
10
The fact that both animals have males with storage pouches that carry the developing offspring indicates what?
The two animals likely have a common ancestor
The two animals likely belong to the same species
The two animals likely eat the same food
The two animals likely fill the same roll in a food web
11
The foundation for biological evolution or descent through modification is
all living things are made of one or more cells.
changes in gene frequency in a pop occur from one generation to the next.
organisms adapt to changes in their environment.
migration, genetic drift, and natural selection cause biological evolution.
12
The image is an example of _____________
Vestigial structures
Analogous structures
Homologous structures
Homozygous structures
13
Human activities can alter an ecosystem and create extinction of species. These activities include the following except
assuring a habitat remains unharmed.
hunting a species to extinction.
introducing toxic compounds into food webs.
introducing a new species into an environment.
14
The diagram shows the embryo development of four vertebrates and suggests all of the following EXCEPT
common features (gills and segments) in the embryos of all vertebrates.
there are very few differences in the early development of any vertebrates.
common ancestry of vertebrates.
there are no similarities in the embryos of all four groups.
15
What has changed from the original generation to the new generation?
There was a mutation
The phenotypes changed colors
A new allele moved into the gene pool
The allele frequencies changed

F1S Bio 1 Evolution Review Unit 5 Flashcards | StudBud